In a nutshell, the all-valve, 4-channel JVM410H guitar amp head is the most versatile Marshall amplifier ever made.

In a nutshell, the all-valve, 4-channel JVM410H guitar amp head is the most versatile Marshall amplifier ever made. It also boasts more Gain than any other Marshall to date – and that’s really saying something!! Each of its 4-channels – Clean, Crunch, OD1 & OD2 – are not only completely independent of each other, they all also boast three Modes, all 12 of which are footswitchable and feature their own unique gain structure. Making the JVM 4-channel effectively 12 Marshalls in one! It also features built-in, studio quality digital reverb with a level control for each channel. This is also footswitchable, as are the amp’s two Master Volume controls and the Series/Parallel effects loop. The amp also features Master controls for Resonance and Presence. Even though the amps house 28 controls and 8 LED switches on their front panels, they’re incredibly simple to understand because of the extremely logical layout. Each of the 4 channels has the usual suspects when it comes to controls – Volume, Bass, Middle, Treble & Gain – accounting for 20 of the 28 controls right way. Take away the 4 reverb controls and you’re only left with 4 Master controls – 2 x Master Volumes plus Resonance & Presence. As just mentioned...simple to understand and totally logical. Add to this an ingenious footswitch (UK patent pending) and the fact all the amps switching (channel/modes, Reverb, Master Volume selection, FX loop) can be done via MIDI and you’re looking at an incredibly flexible amp. To be exact the 6-way footswitch boasts 7 LEDs and memory, plus it is connected to the amp via a regular guitar cable – making it 110% guitarist (and guitar tech) friendly.